EP4003448A1 - Vorrichtung zur bereitstellung von dialysekonzentrat - Google Patents
Vorrichtung zur bereitstellung von dialysekonzentratInfo
- Publication number
- EP4003448A1 EP4003448A1 EP20745189.9A EP20745189A EP4003448A1 EP 4003448 A1 EP4003448 A1 EP 4003448A1 EP 20745189 A EP20745189 A EP 20745189A EP 4003448 A1 EP4003448 A1 EP 4003448A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- concentrate
- dialysis concentrate
- dialysis
- container
- density
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1654—Dialysates therefor
- A61M1/1656—Apparatus for preparing dialysates
- A61M1/1668—Details of containers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1654—Dialysates therefor
- A61M1/1656—Apparatus for preparing dialysates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1654—Dialysates therefor
- A61M1/1656—Apparatus for preparing dialysates
- A61M1/1666—Apparatus for preparing dialysates by dissolving solids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3306—Optical measuring means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3317—Electromagnetic, inductive or dielectric measuring means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3324—PH measuring means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
Definitions
- the present invention relates to a device for providing liquid dialysis concentrate comprising a dialysis concentrate container for receiving the dialysis concentrate.
- the dialysis concentrates dry concentrates or slurried concentrates are usually placed in a container Kombe. After the interchangeable container has been connected to the device, water is pumped into the interchangeable container and the mixture is recirculated in a recirculation circuit through a mixing tank and the interchangeable container until all of the solids in the dry concentrate are dissolved. If this is the case, the liquid dialysis concentrate produced in this way is conveyed into one or more dialysis concentrate containers and from there, for example, fed to a central supply unit for dialysis concentrates.
- An essential aspect of this procedure is the complete dissolution of the dry concentrate in order to ensure the desired composition of the liquid dialysis concentrate.
- two variants are used: on the one hand, taking a sample of the dialysis concentrate and sending it to a laboratory and, on the other hand, the operator himself measuring the density using a handheld density measuring device.
- Both variants are complex, so that the object of the present invention is to develop a device of the type mentioned at the beginning so that the density determination is particularly simple and time-saving for the operator, i.e. for the user of the device.
- the mixing system known from EP 2745862 A1 has a tank into which solvent, e.g. water, is dosed. The solvent is then conveyed into a tank with dry concentrate, whereupon the dry concentrate is brought into solution by circulating the suspension through the tank, the raw material container and the lines connected to it, which together form a circulation circuit.
- solvent e.g. water
- the measuring device for density measurement is arranged in the circulation circuit, for example a measuring chamber can be provided for this purpose.
- the measuring device for density measurement is therefore a component of the mixing system, in particular its circulation circuit, and the mixture of dry concentrate and solvent flows around it.
- a further object of the present invention is thus to create a possibility to retrofit existing processing systems for a simple and time-saving density measurement by the user.
- the object of the present invention is thus to alleviate or even eliminate the problems of the prior art.
- the dialysis concentrate container has a drain and that the device has a measuring device which is in fluid connection with the drain and which is designed to determine the density or a property of the dialysis concentrate that is correlated with the density, with the drain From a locking element, in particular a valve is arranged, by means of which the sequence se selectively can be opened or closed.
- the dialysis concentrate container is preferably not part of a circulation circuit and is not used when a concentrate is dissolved in a solvent, e.g. water.
- a solvent e.g. water.
- the dialysis concentrate container is preferably not flowed through by the mixture of dry concentrate and the solvent when mixing a concentrate and a solvent.
- the dialysis concentrate container is thus preferably formed separately and / or independently of a circulation circuit of a processing system or mixing system and is not traversed by a circulating mixture of concentrate and solvent.
- the circulation circuit can have a mixing container and an interchangeable container, which are connected to one another via a (re) circulation line.
- the ready-mixed dialysis concentrate is preferably passed into the dialysis concentrate container after recirculation.
- the drain can comprise a line, in particular a hose or a pipe, by means of which the dialysis concentrate is passed from the dialysis concentrate container to the measuring device. If a density measurement or the measurement of a property is desired, by means of which the density can be inferred (such as the light transmission, etc.), the shut-off element is opened so that the dialysis concentrate is conveyed from the dialysis concentrate container to the measuring device.
- the process is thus preferably not designed to be connected to a processing system and / or a circulation circuit of a processing system, but preferably serves exclusively to empty the dialyse concentrate container.
- the present invention can thus be applied to any dialysis concentrate container.
- This opening of the shut-off element can be done manually if required by the user, or it can be automated by a control unit that causes the shut-off element to be opened.
- this not only includes the measurement of the density of the dialysis concentrate, but also includes the measurement of any property with which the density of the dialysis concentrate can be inferred.
- Examples of properties correlated with the density are the light absorption of the dialysis concentrate, the transmission of light through the dialysis concentrate, the concentration of one, several or all of the ingredients of the dialysis concentrate, the Conductivity of the dialysis concentrate, the presence of undissolved solids in the dialysis concentrate or the viscosity of the dialysis concentrate or a combination of the aforementioned parameters.
- a backflow prevention element such as a non-return valve, can be arranged in the drain.
- dialysis concentrate containers are present, each of which has a drain, the several drains being brought together in a distributor which is arranged upstream of the measuring device in the flow direction of the dialysis concentrate.
- each dialysis concentrate container is preferably equipped with a shut-off element, such as a sampling tap.
- Concentrate hoses are connected to these Absperrele elements, which are brought together in a distribution block or the like, but are fluidically separated from one another.
- a shut-off element or several shut-off elements can be provided for each process.
- the shut-off element or elements can be arranged on or in the distributor.
- a sampling tap or the like on each of the dialysis concentrate container (s) and, in front of the entry into the distributor, a ball valve or the like and possibly a backflow preventer.
- a concentrate hose or other concentrate line leading away from the distributor is connected to an inline density measuring device, i.e. to the measuring device according to the invention.
- the corresponding ball valve is opened so that the concentrate from the relevant dialysis concentrate container flows through the density measuring device and from this preferably into the drain.
- the end of the drain without free-fall section protrudes into a liquid, e.g. in a siphon, so that the system is free of air.
- the entire system is therefore permanently free of air, internal possible crystallization and blockages of the concentrate can be avoided.
- the device has a reader or an input device, by means of which the concentrate type can be read or input from which the dialysis concentrate is produced and that a database or other memory is present in which a Correlation between the concentrate type and the density or the correlated property of the dialysis concentrate is stored.
- the concentrate type of the concentrate preferably the dry concentrate, which is located in a corresponding concentrate container, which is also referred to below as a swap container, is determined by means of the reader.
- the reading device is, for example, a hand-held barcode reader or another scanner.
- This / this is connected to a PC or the like, as is the measuring device, preferably the density measuring device, and possibly a label printer and / or a signaling device, by means of which the user can be signaled whether the dialysis concentrate has the correct density and thus a complete dissolution of the dry concentrate has taken place.
- the measuring device preferably the density measuring device, and possibly a label printer and / or a signaling device, by means of which the user can be signaled whether the dialysis concentrate has the correct density and thus a complete dissolution of the dry concentrate has taken place.
- a comparison unit can be present which compares the measured density / property with the density / property stored in the database.
- the comparison unit can be designed to output a signal that is perceptible to the user and which is dependent on the comparison and / or to print out a label on which data relating to the dialysis concentrate are printed. The latter preferably only takes place when the measured density or property correlated with this is in a target value range.
- the measuring device measures the density or the like of the correct dialysis concentrate and not residues of a previous measurement
- a control is available that the measuring device only after a certain period of time after the opening of the Absperrelemen tes or after a other action activated.
- the control system does not perform the density measurement until 30 seconds or the like after opening the ball valve or after another trigger event.
- control is designed in such a way that the measuring device is only activated a certain period of time after activation of the reading device and / or the input device and measuring the density or other property of the liquid dialysis concentrate.
- the device preferably has a mixing container and an interchangeable container which contains the concentrate from which the dialysis concentrate is produced.
- the interchangeable container is used to hold the concentrate, preferably present as a dry concentrate, from which the liquid dialysis concentrate is made.
- the invention covers both the case that the containers, tanks, etc. are filled and the case that this is not the case.
- the present invention thus protects the device as such and also the device in the filled state.
- the swap container When full, the swap container contains the concentrate (preferably dry concentrate) from which the liquid dialysis concentrate is made and in the recirculation circuit, which includes the mixing tank, a pump and the interchangeable tank, this concentra- tion is mixed or dissolved with water.
- the dialysis concentrate container contains the liquid dialysis concentrate, from which the ready-to-use dialysis solution is then produced in a further step.
- the mixing container and the interchangeable container are preferably in fluid connection with one another through a recirculation line.
- the mixing container is in fluid connection with the dialysis concentrate container or containers in order to transfer the dialysis concentrate from the mixing container into the dialysis concentrate container or containers by means of a pump.
- dialysis concentrate containers in which dialysis concentrates each with a different composition are contained.
- Figure 1 a schematic view of the device according to the invention with several ren dialysis concentrate containers
- Figure 2 a schematic representation of the distribution block with measuring device, PC, scanner and label printer
- FIG. 3 a schematic representation of the distribution block with measuring device, tablet and label printer and
- FIG. 4 an exemplary representation of the label printer and a label for the concentrate protocol.
- Figure 1 shows a device according to the invention with a total of six Dialysekon concentrate containers 10, in which the liquid dialysis concentrate is located. Furthermore, a mixing container 20 is provided which is connected to an interchangeable container 30 via recirculation lines R.
- the interchangeable container 30 there is a dry concentrate or a slurry-up concentrate that is mixed with water, preferably RO water, from the mixing container 20 and is dissolved by recirculation between the interchangeable container 30 and the mixing container 20.
- the recirculation is brought about by a pump not shown in detail.
- the dialysis concentrate After the dissolution of the dry concentrate or the slurried concentrate, the dialysis concentrate reaches the dialysis concentrate container 10 by means of a pump (not shown in detail), whereby the same dialysis concentrate or different dialysis concentrates can be present in all dialysis concentrate containers.
- Each dialysis concentrate container 10 is equipped with a sampling bottle 100, this being provided with a reference symbol only for the dialysis concentrate container 10 shown on the left for the sake of clarity.
- the sampling taps 100 are used for the purpose of taking concentrate samples.
- a ball valve 200 and a backflow preventer RS are located in front of the entry into the distributor block V, as can be seen from FIGS. 2 and 3. It can also be seen from these figures that each hose 110 is connected to the distributor V via its own connection.
- a concentrate hose 120 is connected to an inline density measuring device M, as shown in FIGS. 1 to 3.
- the corresponding ball valve 200 is opened on the distributor block V.
- the dialysis concentrate thus flows through the density meter M and from there into the drain A.
- the end of the drain hose 120 protrudes into a liquid, e.g. into a siphon, without a free fall section.
- the entire concentrate sampling system is therefore permanently free of air. Internal possible crystallization and blocking of the concentrate can thus be avoided.
- FIG. 2 shows with the reference numeral 300 a PC, preferably a mini PC with special software, in which all (e.g. seven) concentrate types are stored with associated density limits and temperature correction values.
- the following hardware is connected to the PC 300: the density meter M, a handheld barcode reader 400 and a (mini) label printer E via an RS 232 connector K.
- the dialysis concentrate flows from the dialysis concentrate container 10 to be sampled, for example at 200 ml / min, through the density measuring device M into the drain A.
- the software counts down 30 seconds (or another suitable period of time) until acceptance, ie measurement of the current density and temperature value. After these 30 seconds, it is guaranteed that all of the filling volumes remaining from the last measurement have left the system.
- the label 600 indicates the date, time of measurement, the type of concentrate, the batch, the density limits and the measured value of the density.
- Reference 700 in FIG. 4 shows a concentrate log.
- a tablet can also be used, as shown in FIG.
- the tablet 500 there is an app with a selection of the concentrate type, in which all (e.g. seven) concentrate types are stored with the associated density limits and temperature correction values.
- the following hardware is connected to the tablet 500: The density measuring device M and the (mini) label printer E.
- the dialysis concentrate flows from the dialysis concentrate container 10 to be sampled at, for example, 200 ml / min through the density meter M into the drain A.
- the software counts down 30 seconds until acceptance, ie measurement of the current density and temperature value. After these 30 seconds, it is guaranteed that all of the filling volumes remaining from the last measurement have left the system. If the density value is within the tolerance limits, a corresponding label printout takes place, as already described for FIG.
- the measuring arrangement according to the invention can be arranged on the device from the outset or mounted as a retrofit kit on existing devices for the production of a liquid dialysis concentrate.
- the dialysis concentrate container must be provided with a drain and the measuring equipment described must be provided.
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Urology & Nephrology (AREA)
- Anesthesiology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Emergency Medicine (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019120174.8A DE102019120174A1 (de) | 2019-07-25 | 2019-07-25 | Vorrichtung zur Bereitstellung von Dialysekonzentrat |
| PCT/EP2020/070832 WO2021013945A1 (de) | 2019-07-25 | 2020-07-23 | Vorrichtung zur bereitstellung von dialysekonzentrat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4003448A1 true EP4003448A1 (de) | 2022-06-01 |
| EP4003448B1 EP4003448B1 (de) | 2024-12-25 |
Family
ID=71784062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20745189.9A Active EP4003448B1 (de) | 2019-07-25 | 2020-07-23 | Vorrichtung zur bereitstellung von dialysekonzentrat |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20220241481A1 (de) |
| EP (1) | EP4003448B1 (de) |
| DE (1) | DE102019120174A1 (de) |
| WO (1) | WO2021013945A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202000025102A1 (it) * | 2020-10-22 | 2022-04-22 | Baxter Int | Sistema mobile di generazione di un fluido medicale |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1260638B (it) * | 1993-04-05 | 1996-04-22 | S I F Ra Societa Italiana Farm | Sistema per la preparazione di un fluido da utilizzare in trattamenti medicali |
| US6595944B2 (en) * | 2000-06-17 | 2003-07-22 | Fresenius Medical Care Deutschland Gmbh | Dialysis machine and method of operating a dialysis machine |
| US8029454B2 (en) * | 2003-11-05 | 2011-10-04 | Baxter International Inc. | High convection home hemodialysis/hemofiltration and sorbent system |
| JP5378203B2 (ja) * | 2006-04-07 | 2013-12-25 | ネクステージ メディカル インコーポレイテッド | 医療用の流体を作るろ過システム |
| DE102010055781B4 (de) * | 2010-12-23 | 2014-07-24 | Manfred Völker | Mischanlage |
| EP3009183B1 (de) * | 2014-10-15 | 2017-01-11 | Dunschat, Christoph | Dialysekonzentrat-Herstellungsanordnung |
| EP3012014B1 (de) * | 2014-10-21 | 2017-05-31 | Dunschat, Christoph | Flüssigkeitsbehandlungs-Anlage |
| DE202014105204U1 (de) * | 2014-10-30 | 2016-02-02 | Christoph Dumschat | Dialysekonzentrat-Herstellungsanordnung |
| DE102017000495A1 (de) * | 2017-01-20 | 2018-07-26 | Fresenius Medical Care Deutschland Gmbh | DlALYSATKONZENTRATlON-MESSSENSORDlAGNOSE |
| DE102017218209A1 (de) * | 2017-10-12 | 2019-04-18 | Vivonic Gmbh | Vorrichtung und Verfahren zur Entgasung von Dialysekonzentraten für die automatische Dichtemessung in Mischanlagen |
| DE102017127637B4 (de) * | 2017-11-22 | 2025-10-30 | Vivonic Gmbh | Vorrichtung und Verfahren zur Herstellung einer medizinischen Lösung |
-
2019
- 2019-07-25 DE DE102019120174.8A patent/DE102019120174A1/de not_active Ceased
-
2020
- 2020-07-23 WO PCT/EP2020/070832 patent/WO2021013945A1/de not_active Ceased
- 2020-07-23 EP EP20745189.9A patent/EP4003448B1/de active Active
- 2020-07-23 US US17/629,438 patent/US20220241481A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019120174A1 (de) | 2021-01-28 |
| US20220241481A1 (en) | 2022-08-04 |
| WO2021013945A1 (de) | 2021-01-28 |
| EP4003448B1 (de) | 2024-12-25 |
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